搭建 Vitest 测试框架;新增答案等价判定 lib(answer-match),QuizQ 支持 judgeMode

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

package.json

@@ -11,7 +11,8 @@
     "db:push": "drizzle-kit push",
     "db:seed": "tsx scripts/seed.ts",
     "db:seed-math": "tsx scripts/seed-math.ts",
-    "db:seed-exam": "tsx scripts/seed-exam.ts"
+    "db:seed-exam": "tsx scripts/seed-exam.ts",
+    "test": "vitest run"
   },
   "dependencies": {
     "@fontsource-variable/plus-jakarta-sans": "^5.3.0",
@@ -34,13 +35,18 @@
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4.1.11",
+    "@testing-library/jest-dom": "^7.0.1",
+    "@testing-library/react": "^16.3.2",
+    "@testing-library/user-event": "^14.6.5",
     "@types/node": "^24.0.0",
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
     "dotenv": "^17.2.0",
     "drizzle-kit": "^0.31.4",
+    "jsdom": "^30.0.1",
     "tailwindcss": "^4.1.11",
     "tsx": "^4.20.3",
-    "typescript": "^5.8.3"
+    "typescript": "^5.8.3",
+    "vitest": "^4.1.11"
   }
 }